1、操作系统宏
//在中，定义了各个系统的宏定义
//Defined on AIX.
#ifdef Q_OS_AIX
// Defined on Android.
#define Q_OS_ANDROID
//Defined on Any BSD 4.4 system.
#define Q_OS_BSD4
//Defined on BSD/OS.
#define Q_OS_BSDI
//Defined on Cygwin.
#define Q_OS_CYGWIN
//Defined on Darwin-based operating systems such as macOS, iOS, watchOS, and tvOS.
#define Q_OS_DARWIN
//Defined on DG/UX.
#define Q_OS_DGUX
//Defined on DYNIX/ptx.
#define Q_OS_DYNIX
//Defined on FreeBSD.
#define Q_OS_FREEBSD
//Defined on HP-UX.
#define Q_OS_HPUX
//Defined on GNU Hurd.
#define Q_OS_HURD
//Defined on iOS.
#define Q_OS_IOS
//Defined on SGI Irix.
#define Q_OS_IRIX
//Defined on Linux.
#define Q_OS_LINUX
//Defined on LynxOS.
#define Q_OS_LYNX
//Deprecated synonym for Q_OS_DARWIN. Do not use.
#define Q_OS_MAC
//Defined on macOS.
#define Q_OS_MACOS
//Defined on NetBSD.
#define Q_OS_NETBSD
//Defined on OpenBSD.
#define Q_OS_OPENBSD
//Defined on HP Tru64 UNIX.
#define Q_OS_OSF
//Deprecated synonym for Q_OS_MACOS. Do not use.
#define Q_OS_OSX
//Defined on QNX Neutrino.
#define Q_OS_QNX
//Defined on Reliant UNIX.
#define Q_OS_RELIANT
//Defined on SCO OpenServer 5.
#define Q_OS_SCO
//Defined on Sun Solaris.
#define Q_OS_SOLARIS
//Defined on tvOS.
#define Q_OS_TVOS
//Defined on DEC Ultrix.
#define Q_OS_ULTRIX
//Defined on Any UNIX BSD/SYSV system.
#define Q_OS_UNIX
//Defined on UnixWare 7, Open UNIX 8.
#define Q_OS_UNIXWARE
//Defined on watchOS.
#define Q_OS_WATCHOS
//Defined on 32-bit and 64-bit versions of Windows.
#define Q_OS_WIN32
//Defined on 64-bit versions of Windows.
#define Q_OS_WIN64
//Defined on all supported versions of Windows. That is, if Q_OS_WIN32, Q_OS_WIN64, or Q_OS_WINRT is defined.
#define Q_OS_WIN
//Defined on Windows Phone 8.
#define Q_OS_WINPHONE
//Defined for Windows Runtime (Windows Store apps) on Windows 8, Windows RT, and Windows Phone 8.
#define Q_OS_WINRT
Original: https://www.cnblogs.com/Arthurian/p/14548136.html
Author: Arthurian
Title: QT中的宏定义
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